Correct Answer: Option B

Explanation

△PQR is right-angled at P.

Using Pythagoras theorem:

QR\(^2\) = PQ\(^2\) + PR\(^2\) = 144 + 25 = 169

QR = \(\sqrt{169}\) = 13 m

• what does productivity of grass means and what are they? Answer this

  1 Answers   ·   Agricultural Science   ·   11 hours ago
• what are the recommend text in Economics? Answer this

  1 Answers   ·   Economics   ·   6 hours ago
• a compund microscope by lens of focal length 1cm and 5cm.an object placed 1.2cm from the objective lens if a... Answer this

  1 Answers   ·   Physics   ·   1 day ago